.test{
    color: bisque;
}

.head{
  
    background-color: red;
}

.body{
    margin-top: 10px;
    width: 100%;
    height: 50px;
    background-color: red;
}

.left_bar{
    height: 100%;
}

.background{
    background-color: black
}


  #components-layout-demo-responsive .logo {
    margin: 5px;
    background: rgba(255, 255, 255, 0.2);
  }
  #components-layout-demo-responsive .logo img{
    height: 40px;
    width: 40px;
  }